55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
from pathlib import Path
|
|
|
|
from django.dispatch import receiver
|
|
from django.template import engines
|
|
from django.template.backends.django import DjangoTemplates
|
|
from django.utils._os import to_path
|
|
from django.utils.autoreload import autoreload_started, file_changed, is_django_path
|
|
|
|
|
|
def get_template_directories():
|
|
# Iterate through each template backend and find
|
|
# any template_loader that has a 'get_dirs' method.
|
|
# Collect the directories, filtering out Django templates.
|
|
cwd = Path.cwd()
|
|
items = set()
|
|
for backend in engines.all():
|
|
if not isinstance(backend, DjangoTemplates):
|
|
continue
|
|
|
|
items.update(cwd / to_path(dir) for dir in backend.engine.dirs if dir)
|
|
|
|
for loader in backend.engine.template_loaders:
|
|
if not hasattr(loader, "get_dirs"):
|
|
continue
|
|
items.update(
|
|
cwd / to_path(directory)
|
|
for directory in loader.get_dirs()
|
|
if directory and not is_django_path(directory)
|
|
)
|
|
return items
|
|
|
|
|
|
def reset_loaders():
|
|
for backend in engines.all():
|
|
if not isinstance(backend, DjangoTemplates):
|
|
continue
|
|
for loader in backend.engine.template_loaders:
|
|
loader.reset()
|
|
|
|
|
|
@receiver(autoreload_started, dispatch_uid="template_loaders_watch_changes")
|
|
def watch_for_template_changes(sender, **kwargs):
|
|
for directory in get_template_directories():
|
|
sender.watch_dir(directory, "**/*")
|
|
|
|
|
|
@receiver(file_changed, dispatch_uid="template_loaders_file_changed")
|
|
def template_changed(sender, file_path, **kwargs):
|
|
if file_path.suffix == ".py":
|
|
return
|
|
for template_dir in get_template_directories():
|
|
if template_dir in file_path.parents:
|
|
reset_loaders()
|
|
return True
|